The investigators hypothesized that application of a 5% lidocaine patch would be associated with reduced pain scores after operation compared with placebo patch in patients undergoing laparoscopic cholecystectomy.

Detailed Description

The 5% lidocaine patch have been approved for the treatment of postherpetic neuralgia.

The investigators hypothesized that application of a 5% lidocaine patch would be associated with reduced pain scores, pain controlled drug(opioids, NSAID) in post operative period.